SharedSecrets.java revision 608:7e06bf1dcb09
1/* 2 * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package sun.corba; 27 28import com.sun.corba.se.impl.io.ValueUtility; 29import sun.misc.Unsafe; 30 31import java.security.AccessController; 32 33/** A repository of "shared secrets", which are a mechanism for 34 calling implementation-private methods in another package without 35 using reflection. A package-private class implements a public 36 interface and provides the ability to call package-private methods 37 within that package; the object implementing that interface is 38 provided through a third package to which access is restricted. 39 This framework avoids the primary disadvantage of using reflection 40 for this purpose, namely the loss of compile-time checking. */ 41 42// SharedSecrets cloned in corba repo to avoid build issues 43public class SharedSecrets { 44 private static final Unsafe unsafe = Unsafe.getUnsafe(); 45 private static JavaCorbaAccess javaCorbaAccess; 46 47 public static JavaCorbaAccess getJavaCorbaAccess() { 48 if (javaCorbaAccess == null) { 49 // Ensure ValueUtility is initialized; we know that that class 50 // provides the shared secret 51 unsafe.ensureClassInitialized(ValueUtility.class); 52 } 53 return javaCorbaAccess; 54 } 55 56 public static void setJavaCorbaAccess(JavaCorbaAccess access) { 57 javaCorbaAccess = access; 58 } 59 60} 61